These Gluten Free Blondies are the ultimate treat. They can be made gluten free, are easy to make and topped with some flaky sea salt for the perfect sweet and salty combo.

Bite taken out of a Gluten Free Blondie topped with chocolate chips and sea salt.

These are the BEST blondies ever. I know that’s a big statement but I stand by it!

I tested this recipe three times to get the perfect texture and flavor for you. A blondie shouldn’t be cakey but fudgy, dense and rich with a thin, crinkly top.

Basically a cookie but in brownie form!

Luckily, this recipe is incredibly easy to make. So easy that I’ve made this batter in just 8 minutes. Yes, I’ve timed it!

In addition, you only need one bowl to whip up the blondie batter. Leaving you with an easy clean up and less dishes!

Filled with chocolate chips, these Gluten Free Blondies are the perfect, late night treat.

They’re indulgent and can satisfy any sweet tooth. However, the touch that brings these blondies to the next level is the flaky sea salt on top…

Main Ingredients

Gluten Free Blondies ingredients measured out in bowls.

What is Kefir?

Kefir is fermented milk of a cow, goat, or sheep.

Why is kefir used in this recipe?

Kefir adds to the richness of the blondies but also creates the perfect texture. The creaminess of the kefir creates the ultimate gooey inside of the blondie.

You can also use regular buttermilk and the blondies will come out the same!

Kefir Substitutions

  • Buttermilk (recommended swap 1:1 ratio)
  • Yogurt thinned out with milk (for 1 cup of kefir use 3/4 cup of yogurt + 1/4 cup milk)
  • Melted butter (1:1 ratio) + 1/4 tsp baking powder

What is a Blondie?!

If you’ve never heard of blondies before, you are in for a treat! I think of blondies as cookies but in brownie form. They are thicker and have a more fudge-like texture than your typical cookie.

BUT they are just as delicious!

Blondies are typically softer than a cookie and that’s what I love about them. The melted chocolate paired with the flaky sea salt makes them heaven in every bite!

Gluten Free Blondie on it's side to show the fudgy texture.

How to Make Gluten Free Blondies

  1. Preheat the oven to 350 degrees F
  2. Add the eggs, brown sugar, butter, kefir and vanilla extract to a large mixing bowl
  3. Mix until fully combined
  4. Add flour and mix until just combined
  5. Fold in the chocolate chips
  6. Pour into a 8×8 baking pan that is lined with greased parchment paper
  7. Top with extra chocolate chips
  8. Bake in the oven for 30 minutes, rotating the pan 180 degrees halfway through the baking time
  9. Remove from the oven and top with flaky sea salt
  10. Let cool for a minimum of 30 minutes before slicing
  11. Enjoy!
Wet ingredients to make Gluten Free Blondies in a large, glass mixing bowl.
Mix together the wet ingredients
Folding the dry ingredients into the batter.
Fold in the dry ingredients
Add the chocolate chips into the batter and combine.
Add in the chocolate chips
Add extra chocolate chips on the Gluten Free Blondies batter once in the square pan.
Transfer the batter to a square 8×8 pan and top with extra chocolate chips.
Baked Gluten Free Blondies topped with sea salt.
Bake and then top with flaky sea salt.
Fudgy Gluten Free Blondies stacked on top of each other.
Enjoy!

Frequently Asked Questions

What’s the difference between a blondie and a brownie?

Blondies use vanilla extract and brown sugar instead of cocoa powder to get their flavor, while brownies use chocolate and cocoa. Plus, brownies usually include white sugar instead of brown sugar.

Can I use regular all purpose flour for this recipe?

Yes! Use a 1:1 ratio for all purpose flour.

I do not recommend using oat flour, coconut flour or almond flour as these have not been tested and may affect the final result.

Can I add other mix-ins?

You can add any mix-ins you’d like! For example, any type of chocolate chips/chunks, nuts, nut butter, seeds, candy, sprinkles and more!

Do I have to use kefir to make these blondies?

You don’t have to! I would suggest swapping for buttermilk if you don’t have kefir on hand or at your grocery store. I provide alternatives to kefir above in this post.

How should these blondies be stored?

Store in an airtight container at room temperature for up to 3 days or in the fridge for up to 5. However, they are so good that they probably won’t last that long!

Sliced Gluten Free Blondies topped with sea salt.
Gluten Free Blondie with a bite taken out of it.
5 stars (4 ratings)

Gluten Free Blondies

Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 9 blondies
These Gluten Free Blondies are the ultimate treat. They can be made gluten free, are easy to make and topped with some flaky sea salt for the perfect sweet and salty combo.
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Ingredients
 

  • 1 egg, large
  • 1 egg yolk , large
  • 1 cup dark brown sugar, packed
  • 1/4 cup butter, melted
  • 1/4 cup buttermilk or kefir
  • 2 tsp vanilla extract
  • 1 1/2 cups gluten free flour
  • 1/3 cup chocolate chips
  • extra chocolate chips, for topping

Equipment

  • 8×8 pan
  • parchment paper

Instructions
 

  • Preheat the oven to 350 degrees F
  • Add the eggs, brown sugar, butter, buttermilk and vanilla extract to a large mixing bowl
  • Mix until fully combined
  • Add flour and mix until just combined
  • Fold in the chocolate chips
  • Pour into a 8×8 baking pan that is lined with greased parchment paper
  • Top with extra chocolate chips
  • Bake in the oven for 30 minutes, rotating the pan 180 degrees halfway through the baking time
  • Remove from the oven and top with flaky sea salt
  • Let cool for a minimum of 30 minutes before slicing
  • Enjoy!

Nutrition

Calories: 300kcal
Author: Jessica Selensky
Course: Dessert, Snack
Cuisine: American
Keywords: blondies, chocolate chips, cookie bars, easy dessert, flaky sea salt, gluten free dessert

If you try this recipe, please consider leaving a rating and comment at the end of this blog post! It is incredibly helpful to my small business and to your fellow readers.